CN106579797A - Expansible book stand - Google Patents

Abstract

The invention discloses a retractable bookshelf, which comprises a first right-angled triangle, a second right-angled triangle, a third right-angled triangle, a fourth right-angled triangle, a fifth right-angled triangle and an equilateral triangle. All are provided with the first right-angled triangle, and the chord side of the first right-angled triangle is in contact with the equilateral triangle, and the stock side of the first right-angled triangle is provided with a second right-angled triangle, and contacts with the stock side of the second right-angled triangle, The chord side of the second right-angled triangle is provided with a third right-angled triangle, and contacts with the chord of the third right-angled triangle, and the stock side of the third right-angled triangle is provided with a fourth right-angled triangle, and is connected to the fourth right-angled triangle. The strands of the triangular plate are in contact, and the chord side of the fourth right-angled triangular plate is provided with a fifth right-angled triangular plate, and is in contact with the chord side of the fifth right-angled triangular plate. The present invention can open and fold the bookshelf layer by layer, which can save space. easy to carry.

Description

A retractable bookshelf

technical field

The invention relates to the technical field of bookshelves, in particular to a retractable bookshelf.

Background technique

At present, although there are many kinds of small bookshelves, most of them belong to the form of fixed bookshelves; there is a kind of pull-out bookshelf, although it can be pulled, it only changes back and forth in length. There are many kinds, but none of them can be folded, and the products are inconvenient to pack, transport and carry.

Even a foldable bookshelf still takes up a lot of space after being folded, and it is still very inconvenient to carry.

Contents of the invention

The technical problem to be solved by the present invention is to provide a retractable bookshelf to solve the above-mentioned multiple defects in the prior art.

In order to achieve the above object, the present invention provides the following technical solutions: a retractable bookshelf, including a first right-angled triangle, a second right-angled triangle, a third right-angled triangle, a fourth right-angled triangle, a fifth right-angled triangle and an equilateral triangle , the lower end of the equilateral triangle is provided with a cylindrical block, and the first triangle, the second triangle, the third triangle, the fourth triangle, and the fifth triangle are all provided with a matching triangle Groove, the lower ends of the first right-angled triangle, the second right-angled triangle, the third right-angled triangle, the fourth right-angled triangle, and the fifth right-angled triangle are all provided with snap ring sleeves, and the snap ring sleeves are clamped on the cylindrical block. Both sides of the equilateral triangle are provided with the first right triangle, and the chord of the first triangle is in contact with the equilateral triangle, and the equilateral triangle can be stored in the groove of the first right triangle. The thigh side of the right-angled triangle is provided with a second right-angled triangle, and contacts with the thigh of the second right-angled triangle, and the first right-angled triangle can be received in the groove of the second right-angled triangle, and the second right-angled triangle A third right-angled triangle is provided on the chord side of the third right-angled triangle, and is in contact with the chord of the third right-angled triangle. The second right-angled triangle can be stored in the groove of the third right-angled triangle. The side is provided with a fourth right-angled triangle, and is in contact with the stock side of the fourth right-angled triangle, and the third right-angled triangle can be stored in the groove of the fourth right-angled triangle, and the chord side of the fourth right-angled triangle is provided with The fifth right-angled triangle is in contact with the chord side of the fifth right-angled triangle, and the fourth right-angled triangle can be accommodated in the groove of the fifth right-angled triangle.

Preferably, outer baffles are provided on both sides of the equilateral triangular plate, inner baffles are provided on the inner walls of the chord sides of the first right-angled triangular plate, the third right-angled triangular plate and the fifth right-angled triangular plate, and the first right-angled triangular plate Outer baffles are all provided on the stock limit outer wall of the triangular plate and the third right-angled triangular plate, internal baffle plates are provided on the stock limit inner wall of the second right-angled triangular plate and the fourth right-angled triangular plate, and the An outer baffle is arranged on the outer wall of the string edge.

Preferably, the front of the fifth right-angled triangular plate is provided with a book shelf, and the book shelf is hinged to the fifth right-angled triangular plate.

Preferably, a triangular groove is provided on the back of the fifth right-angled triangular plate, and a support frame is provided in the triangular groove, and the support frame is hinged to the fifth right-angled triangular plate.

The beneficial effect of adopting the above technical scheme is: a kind of retractable bookshelf with the structure of the present invention, when the bookshelf is closed, the fifth right-angled triangular plate is rotated to both sides around the axis of the cylindrical block, and the fifth right-angled triangular plate The inner baffle plate blocks the outer baffle plate of the fourth right-angled triangular plate, and the fourth right-angled triangular plate is rotated out around the axis of the cylindrical block, and the inner baffle plate in the fourth right-angled triangular plate blocks the outer baffle plate of the third right-angled triangular plate, and the The third right-angled triangular plate is turned out with the axis around the cylindrical block, the inner baffle plate in the third right-angled triangular plate blocks the outer baffle plate of the second right-angled triangular plate, and the second right-angled triangular plate is turned out with the axis around the cylindrical block, and the second right-angled triangular plate is rotated out with the axis around the cylindrical block. The inner baffle in the second right-angled triangle blocks the outer baffle of the first right-angled triangle, and the first right-angled triangle is rotated around the axis of the cylindrical block, and the inner baffle of the first right-angled triangle blocks the outer baffle of the equilateral triangle board, and finally unfolded to form a bookshelf, and then open the book shelf baffle and the support frame from the fifth right-angled triangle, which are used to support the books and the bookshelf respectively. , easy to carry out.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is an explosion diagram of the present invention;

Fig. 3 is a schematic diagram of the folding structure of the present invention;

Fig. 4 is a side view of the unfolded structure of the present invention;

Fig. 5 is a side view of the retracted structure of the present invention;

Fig. 6 is a side view of a fourth right-angled triangular plate of the present invention.

Among them, 1-the first right-angled triangle, 2-the second right-angled triangle, 3-the third right-angled triangle, 4-the fourth right-angled triangle, 5-the fifth right-angled triangle, 6-equilateral triangle, 7-cylindrical block, 8- Groove, 9-snap ring sleeve, 10-inner baffle, 11-outer baffle, 12-book shelf, 13-triangular groove, 14-support frame.

detailed description

Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6 show a specific embodiment of the present invention: a kind of retractable bookshelf, comprising a first right-angled triangle 1, a second right-angled triangle 2, and a third right-angled triangle 3. The fourth right-angled triangle 4, the fifth right-angled triangle 5 and the equilateral triangle 6, the lower end of the equilateral triangle 6 is provided with a column block 7, the first right-angled triangle 1, the second right-angled triangle 2, the third right-angled triangle Triangle 3, the 4th right-angle triangle 4, the 5th right-angle triangle 5 are all provided with the groove 8 that matches with last triangle, described the first right-angle triangle 1, the second right-angle triangle 2, the 3rd right-angle triangle 3, the 3rd right triangle The lower ends of the four right-angled triangles 4 and the fifth right-angled triangles 5 are provided with snap ring sleeves 9, and the snap ring sleeves 9 are clamped on the cylindrical block 7, and the first right-angled triangles 1 are provided on both sides of the equilateral triangles 6. , and the chord side of the first right-angled triangle 1 is in contact with the equilateral triangle 6, and the equilateral triangle 6 can be stored in the groove 8 of the first right-angled triangle 1, and the thigh side of the first right-angled triangle 1 is set There is a second right-angled triangle 2, and contacts with the stock limit of the second right-angled triangle 2, the first right-angled triangle 1 can be received in the groove 8 of the second right-angled triangle 2, the chord of the second right-angled triangle 2 The side is provided with a third right-angled triangle 3, and contacts with the chord edge of the third right-angled triangle 3, and the second right-angled triangle 2 can be received in the groove 8 of the third right-angled triangle 3, and the third right-angled triangle The thigh side of 3 is provided with a fourth right-angled triangle 4, and contacts with the thigh of the fourth right-angled triangle 4, and the third right-angled triangle 3 can be stored in the groove 8 of the fourth right-angled triangle 4, and the first The chord side of the four right-angled triangles 4 is provided with a fifth right-angled triangle 5, and contacts with the chord of the fifth right-angled triangle 5, and the fourth right-angled triangle 4 can be stored in the groove 8 of the fifth right-angled triangle 5.

In this embodiment, the two sides of the equilateral triangle 6 are provided with outer baffles 11, and the inner walls of the chord sides of the first right-angle triangle 1, the third right-angle triangle 3 and the fifth right-angle triangle 5 are all provided with inner baffles. Plate 10, outer baffles 11 are provided on the outer walls of the thighs of the first right-angled triangle 1 and the third right-angled triangle 3, and internal The baffle plate 10, the outer wall of the chord side of the second right-angled triangular plate 2 and the fourth right-angled triangular plate 4 are provided with an outer baffle plate 11.

In this embodiment, a book shelf baffle 12 is provided on the front of the fifth right-angled triangular plate 5 , and the book shelf baffle 12 is hinged to the fifth right-angled triangular plate 5 .

In this embodiment, a triangular groove 138 is provided on the back of the fifth right-angled triangular plate 5 , and a support frame 14 is arranged in the triangular groove 138 , and the support frame 14 is hinged to the fifth right-angled triangular plate 5 .

Based on the above: a retractable bookshelf of the structure of the present invention, when the bookshelf is closed, the fifth right-angled triangular plate 5 is rotated to both sides around the axis of the cylindrical block 7, and the inner baffle plate in the fifth right-angled triangular plate 5 10 blocks the outer baffle plate 11 of the fourth right-angled triangular plate 4, and the fourth right-angled triangular plate 4 is rotated out around the axis of the cylindrical block 7, and the inner baffle plate 10 in the fourth right-angled triangular plate 4 blocks the third right-angled triangular plate 3 The outer baffle 11 rotates the third right-angled triangular 3 with the axis around the cylindrical block 7, and the inner baffle 10 in the third right-angled triangular 3 blocks the outer baffle 11 of the second right-angled Triangular plate 2 rotates out around the axis of cylindrical block 7, and the inner baffle plate 10 in the second right-angled triangular plate 2 blocks the outer baffle plate 11 of the first right-angled triangular plate 1, and the first right-angled triangular plate 1 is brought around the cylindrical block 7. The axis turns out, and the inner baffle 10 of the first right-angled triangle 1 blocks the outer baffle 11 of the equilateral triangle 6, and finally unfolds to form a bookshelf, and then the book shelf baffle 12 and the support frame 14 are opened from the fifth right-angled triangle 5 , which are respectively used to support books and bookshelves. The invention has a simple structure and can be contracted and unfolded, which greatly saves space and is convenient to carry out.

The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, without departing from the inventive concept of the present invention, some modifications and improvements can also be made, and these all belong to the present invention. protection scope of the invention.

Claims (4)

1. a kind of bookshelf taken down the exhibits, including the first right angle triangle, the second right angle triangle, the 3rd right angle triangle, the 4th Right angle triangle, the 5th right angle triangle and equilateral triangle plate, it is characterised in that：The lower end of the equilateral triangle plate is provided with cylinder Block, first right angle triangle, the second right angle triangle, the 3rd right angle triangle, the 4th right angle triangle, the 5th right angle three Be equipped with the groove matched with lastblock set square in gusset, first right angle triangle, the second right angle triangle, the 3rd Right angle triangle, the 4th right angle triangle, the 5th right angle triangle lower end are equipped with snap ring set, and the snap ring set is connected to cylinder On block, the both sides of the equilateral triangle plate are equipped with the first right angle triangle, and the string side of the first right angle triangle and equilateral three Gusset is contacted, the equilateral triangle plate can with the groove of folding and unfolding to the first right angle triangle, first right angle triangle Stock avris is provided with the second right angle triangle, and contacts with the stock side of the second right angle triangle, and first right angle triangle can be with To in the groove of the second right angle triangle, the string avris of second right angle triangle is provided with the 3rd right angle triangle for folding and unfolding, and Contact with the string side of the 3rd right angle triangle, second right angle triangle can be with the groove of folding and unfolding to the 3rd right angle triangle Interior, the stock avris of the 3rd right angle triangle is provided with the 4th right angle triangle, and contacts with the stock side of the 4th right angle triangle, 3rd right angle triangle can be with the groove of folding and unfolding to the 4th right angle triangle, the string avris of the 4th right angle triangle The 5th right angle triangle is provided with, and is contacted with the string side of the 5th right angle triangle, the 4th right angle triangle can be arrived with folding and unfolding In the groove of the 5th right angle triangle.

2. a kind of bookshelf taken down the exhibits according to claim 1, it is characterised in that：Set on the both sides of the equilateral triangle plate There is outer baffle, be equipped with the string side inwall of first right angle triangle, the 3rd right angle triangle and the 5th right angle triangle Outer baffle is equipped with the stock side outer wall of Internal baffle, first right angle triangle and the 3rd right angle triangle, described second is straight The stock side inwall of angle set square and the 4th right angle triangle is provided with Internal baffle, the second right angle triangle and the 4th right angle triangle String side outer wall be provided with outer baffle.

3. a kind of bookshelf taken down the exhibits according to claim 1, it is characterised in that：The front of the 5th right angle triangle Frame bookend plate is provided with, the frame bookend plate is hinged with the 5th right angle triangle.

4. a kind of bookshelf taken down the exhibits according to claim 1, it is characterised in that：The back side of the 5th right angle triangle Triangle groove is provided with, bracing frame in the triangle groove, is provided with, support frame as described above is hinged with the 5th right angle triangle.